Cushion-shackle.



A. BUONIGORB. GUsHloN SHAGKLE.'

APPLICATION FILED DEO. '1, 1912.

aantec July 21, 1914.

mmsmag A THEY .l'hen tilting, the line of stress Will he diagonally through the cushion upwardly and downwardly, thus causing the main stresses, when the device is tilted, to be substanlially thi'oufcgh -the center of the lsection i" soli the cushion element.

7tlhennanner xof applying the shackle to a vchicleis .inimaterial, and will Vary according to the cl'itraeter of the ru/nning gear em ployed in such vehicle. ln Fig. 5 of the drawings, l have shown my shackle applied to the rear springs of a light vehicle, in which a semi-elliptical spring is interposed between the vehicle body and. the shackle. Any other desired connection between the shackle and the vehicle body iay he employed, however, and the( specific forni of connecting means is immaterial to my invention which consists more particularly in the form of shackle used.

ln the continued practice of my invention upon a light vehicle having ordinary metallic tires, lhave found that thte shocks and vibrations have heen absorbed or minimized to an extent to cause said vehicle to ride with an ease apparently equal to that ot an ordinary solid.- rubber tired vehicle, but without the vibrations vwhich are t'ound in such vehicles. ln other words, as between a vehicle equipped with the ordinary solid rubber tires and a vehicle equipped with ny (,'ushion shackle, the latter, in actual practice, more nearly approacl'ies the conditions t'ound with the ordinary pneumatic tires.

When using cushion tires, many vibrations hass to the vehicle body and any Vibrations developed in the springs or elsewhere are transmitted directly to the vchicle body. wWith a cushion shackle made in accordance with my invention, however, (he vibrations which must necessarily he dei reloped in the running' gear are absorbed by the connection between this running' gear and the vehicle body to an extent to limit the nioveiucnt oi thel vehicle body in large measure to the yielding of the springs, residuarv ".'ihralions or shocks being entirely eliminated. At the, saine time, the dili'ercnt elements ol the shackle` have unfrestricted freedom ol' movement relative to veach other as to permit the swayingr ot' 'the vehicle body, the cushion lneinl'icr between these eleinene, luiivever. serving to cheek this swaying ino'venirnl sligljhtlv, while ai the seiner' line j.-|"'sriil,in;f an anti-friction i'ioiseless element latween the two elementi! smaller dimensions laterally than the twoother rleuij'nls of' -the cushion. the sides ol' the cushion are weakened so as lo oli'fr less.'

resistance to lateral oscillations of the element -b, thus permitting such oscilla-tions, While at the saine time preserving the maxi muni cushioning strength so far as the vertical stresses upon the shackle are concerned.

lt is not vmy intention to liinit the invention to the precise details of construction shown in the drawings, ,nor to the manner of connecting the shackle to the running gear,

that such may be varied without departing from the spirit and scope of the invention.

lWhile primarily/ my improved shackle is es ecially adapted for use in connecting a veiiiele body with the running gear, do not desire to limit myself to its use in this connection, as it maybe used Wthsatisfactory results in supporting objects other than vehicle bodies. i

Having described my invention, what I claim as new and desire to have` protected hy Letters Patent, is:-

l. 'A cushion shackle embodying therein a plurality of similar metallic elements, each having fiat parallel sides and a tlat connecting bearing surface, said elements having a sliding lit one Within the other with the sides of one lelement occupying parallel planes perpendicular to the sides of the other, the ends of the sides' of each element projecting beyond the bearing surface of the other, and the edges of the sides offene ot Siem projecting in juxtaposition to the sur acc of the other whereby a 'substantially inelosed chamber having top and bottom hearinglsurfaces is formed, and a resilient cushion, seated Within said chamber between said bearing surfaces, said elements resj'mctively being provided with means whereby one oit' them may be secured to one part, and the other may be secured to a relatively inovahle part. y

A. cushion shackle eml'iodying therein aplurality of similar metallic elements, each having flat parallel. sides and a flat connecting bearing surface, said elements having a sliding" fil, one Within the other with the sides of one element occupying; parallel planes perpendicular to the sides of the other, the ends of the sides oi cach element projecting beyond the l'iearinggq surface of the other, and the edges ol' the sides oit' one of them 'projecting' in juxtaposition to the surface of ,the other whereby a substantially inclosed chainher having top and bottom hearing surfaces .is formed, and a. resilient cushion, seated within and conforming to, said chamber -be `lweenusaid bearing surfaces, said elements respectively being provided with means uherebv one ot them may be secured to one part. and the other may be secured to a relatively movable part, 'and said cushion being rale-ned adjacent the sides ol' said i lirst named element, whereby oscillatory and to the vehicle body, it being apparent.

movement of said element is permitted, and

-fniovement or displacement. of Suid cushion is prevented.

3. A cushion shackle embodying therein a substantially U-sbaped element adapted to be connected to the running' gear of a, vehiele, a U-sbape--load ehrrying element seated y Within said first named element., and adapted to Sustain the ioud of the Vehicle body, and :1. resilient Cushion seated between said elements, seid cushion comprising a piumlity of rubber pads, one of said pads being of smaller dimensions than the pad engaged by either of Said elements, whereby the Vibratigns of Said running gezuelenient l5 are absorbed by said cushion.

In witness whereof, I have hereunto uffixed my signature, in the presence ot' two subscribing Witnesses, this 19th, (lay Of No v'eniber, 1912.

ANTHONY BUONICORE.

Witnesses l". T. VENTWORTH, EUGENE voN VENING. 

